From 92506bcfff1f0ce8d9ac7c79bd861d3a98fc697f Mon Sep 17 00:00:00 2001
From: Dual Tachyon <N/A>
Date: Sat, 12 Aug 2023 21:33:27 +0100
Subject: [PATCH] Added AUDIO_PlayVoice.

---
 Makefile |  1 +
 audio.c  | 27 +++++++++++++++++++++++++++
 audio.h  |  9 +++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 audio.c
 create mode 100644 audio.h

diff --git a/Makefile b/Makefile
index cfc3de1..2df7df3 100644
--- a/Makefile
+++ b/Makefile
@@ -33,6 +33,7 @@ OBJS += driver/systick.o
 OBJS += driver/uart.o
 
 # Main
+OBJS += audio.o
 OBJS += battery.o
 OBJS += board.o
 OBJS += dcs.o
diff --git a/audio.c b/audio.c
new file mode 100644
index 0000000..2a4e4d4
--- /dev/null
+++ b/audio.c
@@ -0,0 +1,27 @@
+#include "audio.h"
+#include "bsp/dp32g030/gpio.h"
+#include "driver/gpio.h"
+#include "driver/system.h"
+#include "driver/systick.h"
+
+void AUDIO_PlayVoice(uint8_t VoiceID)
+{
+	uint8_t i;
+
+	GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_VOICE_0);
+	SYSTEM_DelayMs(7);
+	GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_VOICE_0);
+	for (i = 0; i < 8; i++) {
+		if ((VoiceID & 0x80U) == 0) {
+			GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_VOICE_1);
+		} else {
+			GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_VOICE_1);
+		}
+		SYSTICK_DelayUs(1200);
+		GPIO_SetBit(&GPIOA->DATA, GPIOA_PIN_VOICE_0);
+		SYSTICK_DelayUs(1200);
+		GPIO_ClearBit(&GPIOA->DATA, GPIOA_PIN_VOICE_0);
+		VoiceID <<= 1;
+	}
+}
+
diff --git a/audio.h b/audio.h
new file mode 100644
index 0000000..cf3893d
--- /dev/null
+++ b/audio.h
@@ -0,0 +1,9 @@
+#ifndef AUDIO_H
+#define AUDIO_H
+
+#include <stdint.h>
+
+void AUDIO_PlayVoice(uint8_t VoiceID);
+
+#endif
+